儿子奶奶英语怎么说

儿子奶奶的英文是grandson's grandmother。来源是由儿子（son）的奶奶（grandmother）合成的。例句：
My grandson's grandmother is very kind.
我儿子的奶奶非常和善。
I visited my grandson's grandmother last weekend.
上个周末我去看望了我儿子的奶奶。
My grandson's grandmother always tells me interesting stories.
我儿子的奶奶经常给我讲有趣的故事。